Introduction to PRBS Test
5
SLAA750 – July 2017
Copyright © 2017, Texas Instruments Incorporated
DAC38RF8x Test Modes
Figure 3. DAC38RF8x EVM GUI Clocking Tab
Step 6.
Select the
Alarm Monitoring
sub-tab (see
). In the
General Alarm and Test
section,
select
Alarm Output
in the
ALARM Pin
drop-down menu. Select the
ALARM Pin Polarity
field
to be either
Active High
or
Active Low
. Active high causes the alarm pin voltage to be set
high if a PRBS error occurs.
Figure 4. DAC38RF8x EVM GUI Alarm Monitoring Tab
Step 7.
Select the
SERDES and Lane Configuration
sub-tab (see
). In the
Align
drop-down
menu select
Disabled
. Next, in the
SERDES Test Pattern
drop-down menu select the desired
PRBS test. In the
DTEST
drop-down menu select
TESTFAIL
. In the
DTEST Lane Select
drop-down menu, select the lane to be tested.
